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2014-09-28T22:22:21+03:00
2,1(3)=(213-21)/90=192/90 simplificam=32/15
32/15·3/32+[(5-2)/10]²·4=
simplificM
1/5+9/100·4=1/5+36/100=(20+36)/100=56/100 SIMPLIFICAM=14/25=0,56